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-rw-r--r--du.c44
1 files changed, 38 insertions, 6 deletions
diff --git a/du.c b/du.c
index 9e4e114..b8df718 100644
--- a/du.c
+++ b/du.c
@@ -26,11 +26,13 @@
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
-/*
+#if 0
#include <unistd.h>
#include <sys/stat.h>
-*/
+#endif
+static const char du_usage[] =
+"Usage: du [OPTION]... [FILE]...\n";
typedef void (Display)(size_t, char *);
@@ -42,7 +44,7 @@ print(size_t size, char *filename)
/* tiny recursive du */
static size_t
-size(char *filename)
+du(char *filename)
{
struct stat statbuf;
size_t sum;
@@ -65,7 +67,7 @@ size(char *filename)
{ continue; }
sprintf(newfile, "%s/%s", filename, name);
- sum += size(newfile);
+ sum += du(newfile);
}
closedir(dir);
print(sum, filename);
@@ -76,8 +78,38 @@ size(char *filename)
int
du_main(int argc, char **argv)
{
- /* I'll fill main() in shortly */
- size(".");
+ int i;
+ char opt;
+
+ /* parse argv[] */
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] == '-') {
+ opt = argv[i][1];
+ switch (opt) {
+ case 's':
+ break;
+ case 'h':
+ usage(du_usage);
+ break;
+ default:
+ fprintf(stderr, "du: invalid option -- %c\n", opt);
+ usage(du_usage);
+ }
+ } else {
+ break;
+ }
+ }
+
+ /* go through remaining args (if any) */
+ if (i >= argc) {
+ du(".");
+ } else {
+ for ( ; i < argc; i++) {
+ printf("%-7d %s\n", du(argv[i]) >> 1, argv[i]);
+ }
+ }
+
exit(0);
}
+/* $Id: du.c,v 1.2 1999/12/10 06:15:27 beppu Exp $ */